[kpt codelab] Add sample resources. (#5023)

codelab/01_kpt-validate/resources/sample-app/config/frontend/deployment.yaml

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+apiVersion: apps/v1 #  for k8s versions before 1.9.0 use apps/v1beta2  and before 1.8.0 use extensions/v1beta1
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  selector:
+    matchLabels:
+      app: guestbook
+      tier: frontend
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: guestbook
+        tier: frontend
+    spec:
+      containers:
+      - name: php-redis
+        image: "frontend"
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: env
+        ports:
+        - containerPort: 80

codelab/01_kpt-validate/resources/sample-app/config/frontend/kustomization.yaml

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+resources:
+- service.yaml
+- deployment.yaml

codelab/01_kpt-validate/resources/sample-app/config/frontend/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  labels:
+    app: guestbook
+    tier: frontend
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 80
+  selector:
+    app: guestbook
+    tier: frontend

codelab/01_kpt-validate/resources/sample-app/config/kustomization.yaml

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+resources:
+- frontend

codelab/01_kpt-validate/resources/sample-app/php-redis/Dockerfile

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+# Copyright 2016 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM php:5-apache
+
+RUN apt-get update
+RUN pear channel-discover pear.nrk.io
+RUN pear install nrk/Predis
+
+# If the container's stdio is connected to systemd-journald,
+# /proc/self/fd/{1,2} are Unix sockets and apache will not be able to open()
+# them. Use "cat" to write directly to the already opened fds without opening
+# them again.
+RUN sed -i 's#ErrorLog /proc/self/fd/2#ErrorLog "|$/bin/cat 1>\&2"#' /etc/apache2/apache2.conf
+RUN sed -i 's#CustomLog /proc/self/fd/1 combined#CustomLog "|/bin/cat" combined#' /etc/apache2/apache2.conf
+
+ADD guestbook.php /var/www/html/guestbook.php
+ADD controllers.js /var/www/html/controllers.js
+ADD index.html /var/www/html/index.html

codelab/01_kpt-validate/resources/sample-app/php-redis/Makefile

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+# Copyright 2017 The Kubernetes Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+TAG = v6
+REGISTRY = gcr.io/yuwenma-gke-playground
+ARCH ?= $(shell go env GOARCH)
+ALL_ARCH = amd64 arm arm64 ppc64le
+
+QEMUVERSION=v2.7.0
+
+IMAGE = $(REGISTRY)/gb-frontend
+MULTI_ARCH_IMG = $(IMAGE)-$(ARCH)
+
+# Set default base image dynamically for each arch
+ifeq ($(ARCH),arm)
+	QEMUARCH=arm
+	BASEIMAGE=armhf/php:5.6-apache
+endif
+ifeq ($(ARCH),arm64)
+	QEMUARCH=aarch64
+	BASEIMAGE=arm64v8/php:5-apache
+endif
+ifeq ($(ARCH),ppc64le)
+	QEMUARCH=ppc64le
+	BASEIMAGE=ppc64le/php:5-apache
+endif
+
+TEMP_DIR := $(shell mktemp -d)
+
+all: all-container
+
+sub-container-%:
+	$(MAKE) ARCH=$* container
+
+sub-push-%:
+	$(MAKE) ARCH=$* push
+
+all-container: $(addprefix sub-container-,$(ALL_ARCH))
+
+all-push: $(addprefix sub-push-,$(ALL_ARCH))
+	docker manifest create --amend $(IMAGE):$(TAG) $(shell echo $(ALL_ARCH) | sed -e "s~[^ ]*~$(IMAGE)\-&:$(TAG)~g")
+	@for arch in $(ALL_ARCH); do docker manifest annotate --arch $${arch} ${IMAGE}:${TAG} ${IMAGE}-$${arch}:${TAG}; done
+	docker manifest push --purge ${IMAGE}:${TAG}
+
+container: .container-$(ARCH)
+.container-$(ARCH):
+	cp ./* $(TEMP_DIR)
+
+ifneq ($(ARCH),amd64)
+	cd $(TEMP_DIR) && sed -i "s|FROM php.*|FROM $(BASEIMAGE)\nCOPY qemu-$(QEMUARCH)-static /usr/bin\n|g" Dockerfile
+	# Register /usr/bin/qemu-ARCH-static as the handler for ARM binaries in the kernel
+	docker run --rm --privileged multiarch/qemu-user-static:register --reset
+	curl -sSL https://github.com/multiarch/qemu-user-static/releases/download/$(QEMUVERSION)/x86_64_qemu-$(QEMUARCH)-static.tar.gz | tar -xz -C $(TEMP_DIR)
+endif
+	docker build -t $(MULTI_ARCH_IMG):$(TAG) $(TEMP_DIR)
+
+ifeq ($(ARCH), amd64)
+	# This is for to maintain the backward compatibility
+	docker tag $(MULTI_ARCH_IMG):$(TAG) $(IMAGE):$(TAG)
+endif
+
+push: .push-$(ARCH)
+.push-$(ARCH): .container-$(ARCH)
+	docker push $(MULTI_ARCH_IMG):$(TAG)
+
+clean: $(addprefix sub-clean-,$(ALL_ARCH))
+	docker rmi -f $(IMAGE):$(TAG) || true
+sub-clean-%:
+	docker rmi -f $(IMAGE)-$*:$(TAG) || true

codelab/01_kpt-validate/resources/sample-app/php-redis/controllers.js

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+var redisApp = angular.module('redis', ['ui.bootstrap']);
+
+/**
+ * Constructor
+ */
+function RedisController() {}
+
+RedisController.prototype.onRedis = function() {
+    this.scope_.messages.push(this.scope_.msg);
+    this.scope_.msg = "";
+    var value = this.scope_.messages.join();
+    this.http_.get("guestbook.php?cmd=set&key=messages&value=" + value)
+            .success(angular.bind(this, function(data) {
+                this.scope_.redisResponse = "Updated.";
+            }));
+};
+
+redisApp.controller('RedisCtrl', function ($scope, $http, $location) {
+        $scope.controller = new RedisController();
+        $scope.controller.scope_ = $scope;
+        $scope.controller.location_ = $location;
+        $scope.controller.http_ = $http;
+
+        $scope.controller.http_.get("guestbook.php?cmd=get&key=messages")
+            .success(function(data) {
+                console.log(data);
+                $scope.messages = data.data.split(",");
+            });
+});

codelab/01_kpt-validate/resources/sample-app/php-redis/guestbook.php

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+<?php
+
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+require 'Predis/Autoloader.php';
+
+Predis\Autoloader::register();
+
+if (isset($_GET['cmd']) === true) {
+  $host = 'redis-master';
+  if (getenv('GET_HOSTS_FROM') == 'env') {
+    $host = getenv('REDIS_MASTER_SERVICE_HOST');
+  }
+  header('Content-Type: application/json');
+  if ($_GET['cmd'] == 'set') {
+    $client = new Predis\Client([
+      'scheme' => 'tcp',
+      'host'   => $host,
+      'port'   => 6379,
+    ]);
+
+    $client->set($_GET['key'], $_GET['value']);
+    print('{"message": "Updated"}');
+  } else {
+    $host = 'redis-slave';
+    if (getenv('GET_HOSTS_FROM') == 'env') {
+      $host = getenv('REDIS_SLAVE_SERVICE_HOST');
+    }
+    $client = new Predis\Client([
+      'scheme' => 'tcp',
+      'host'   => $host,
+      'port'   => 6379,
+    ]);
+
+    $value = $client->get($_GET['key']);
+    print('{"data": "' . $value . '"}');
+  }
+} else {
+  phpinfo();
+} ?>

codelab/01_kpt-validate/resources/sample-app/php-redis/index.html

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+<html ng-app="redis">
+  <head>
+    <title>Hello World</title>
+    <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
+    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.12/angular.min.js"></script>
+    <script src="controllers.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/0.13.0/ui-bootstrap-tpls.js"></script>
+  </head>
+  <body ng-controller="RedisCtrl">
+    <div style="width: 50%; margin-left: 20px">
+      <h2>Hello World  YES!</h2>
+    <form>
+    <fieldset>
+    <input ng-model="msg" placeholder="Messages" class="form-control" type="text" name="input"><br>
+    <button type="button" class="btn btn-primary" ng-click="controller.onRedis()">Submit</button>
+    </fieldset>
+    </form>
+    <div>
+      <div ng-repeat="msg in messages track by $index">
+        {{msg}}
+      </div>
+    </div>
+    </div>
+  </body>
+</html>

codelab/01_kpt-validate/resources/sample-app/skaffold.yaml

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+apiVersion: skaffold/v2beta8
+kind: Config
+metadata:
+  name: kpt-cl
+build:
+  artifacts:
+  - image: "frontend"
+    context: php-redis
+deploy:
+  kpt:
+    dir: config

codelab/01_kpt-validate/resources/validation-kubeval/fn-kubeval.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: kubeval
+  annotations:
+    config.kubernetes.io/function: |
+      container:
+        image: gcr.io/kpt-functions/kubeval
+        network: true

codelab/01_kpt-validate/resources/validation-pipeline/fn-pipeline.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  # Validates the yaml schema.
+  name: YamlValidate
+  annotations:
+    config.kubernetes.io/function: |
+      container:
+        image: gcr.io/kpt-functions/kubeval
+        network: true
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  # Validates that all containers have cpu and memory reservations set.
+  name: CPUAndMemory
+  annotations:
+    config.kubernetes.io/function: |
+      container:
+        image: gcr.io/kustomize-functions/example-validator-kubeval:v0.1.0
+        network: true

codelab/02_kpt-deploy/resources/sample-app/config/frontend/deployment.yaml

@@ -0,0 +1,28 @@
+apiVersion: apps/v1 #  for k8s versions before 1.9.0 use apps/v1beta2  and before 1.8.0 use extensions/v1beta1
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  selector:
+    matchLabels:
+      app: guestbook
+      tier: frontend
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: guestbook
+        tier: frontend
+    spec:
+      containers:
+      - name: php-redis
+        image: "frontend"
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: env
+        ports:
+        - containerPort: 80

codelab/02_kpt-deploy/resources/sample-app/config/frontend/kustomization.yaml

@@ -0,0 +1,3 @@
+resources:
+- service.yaml
+- deployment.yaml

codelab/02_kpt-deploy/resources/sample-app/config/frontend/service.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  labels:
+    app: guestbook
+    tier: frontend
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 80
+  selector:
+    app: guestbook
+    tier: frontend

codelab/02_kpt-deploy/resources/sample-app/config/kustomization.yaml

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+resources:
+- frontend

codelab/02_kpt-deploy/resources/sample-app/php-redis/Dockerfile

@@ -0,0 +1,30 @@
+# Copyright 2016 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM php:5-apache
+
+RUN apt-get update
+RUN pear channel-discover pear.nrk.io
+RUN pear install nrk/Predis
+
+# If the container's stdio is connected to systemd-journald,
+# /proc/self/fd/{1,2} are Unix sockets and apache will not be able to open()
+# them. Use "cat" to write directly to the already opened fds without opening
+# them again.
+RUN sed -i 's#ErrorLog /proc/self/fd/2#ErrorLog "|$/bin/cat 1>\&2"#' /etc/apache2/apache2.conf
+RUN sed -i 's#CustomLog /proc/self/fd/1 combined#CustomLog "|/bin/cat" combined#' /etc/apache2/apache2.conf
+
+ADD guestbook.php /var/www/html/guestbook.php
+ADD controllers.js /var/www/html/controllers.js
+ADD index.html /var/www/html/index.html